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4 Cards in this Set
- Front
- Back
proton |
a subatomic particle thet has a positive charge and that is found in the nucleus of an atom |
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atomic mass unit |
a unit of mass that describes the mass of an atom molucuel |
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neutron |
a subatomis partile that hes no charge and that is found in the nueclues of an atom |
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atomic number |
the number of protons in the nucleus of an atom;the atomis number is the same for all atoms of an element |